Spirometry Console
TRAINING MODE
Start Test
Space
Reset
X
Operator Panel
Click Start Test to generate a random maneuver.
Idle
Session Quality:
—
System Interpretation:
No interpretation
Back Extrapolated Volume:
—
% | Expiratory Time:
—
s | Repeatability:
—
L
Patient & Reference
High-contrast device theme • Simplified reference equations
Reference Standard
NHANES
ATS
Age (years)
Height (cm)
Sex
Male
Female
Random Patient
Pred FVC:
--
L
Pred FEV1:
--
L
Pred PEF:
--
L/s
Pred FEV1/FVC:
--
LLN FVC:
--
L
LLN FEV1:
--
L
LLN FEV1/FVC:
--
Test Results
Pred / LLN / Trial 1 / Trial 2 / Trial 3 / Best
Time
ATS
Grade
FVC Pred (L)
FVC (L)
FVC %Pred
FEV1 Pred (L)
FEV1 (L)
FEV1 %Pred
FEV1/FVC Pred
FEV1/FVC
Ratio %Pred
Graphs
Flow–Volume and Volume–Time
Flow–Volume Loop
Flow (L/s) vs Volume (L)
−
+
Volume–Time
Volume (L) vs Time (s)
−
+
Interpretation
You interpret the test (click Check Answer when ready)
Your interpretation
Select…
Obstructive
Restrictive
Mixed
Severity
Select…
Mild
Moderate
Severe
Very Severe
Check Answer
—
—
Comment
Score — Correct:
0
| Total:
0
| Accuracy:
—
Trainer cutoffs (simplified): ratio < 0.70 suggests obstruction; low FVC suggests restriction.
Spirometry Maneuver
SIMULATION
Get Ready
Follow the prompts.
BIG BREATH IN
Keep lips sealed around the mouthpiece.